Edexcel GCSE Statistics · 1ST0
Specification 2b.01 · Paper 1, Paper 2
Revise: Calculating averages for discrete and grouped dataDifferent averages describe ‘typical’ in different ways: the mode identifies what occurs most often, the median identifies the middle, and the arithmetic mean shares the total equally among all observations.
- Revise: Effects of data changes and transformations on averages
The total of the numerical data values divided by the number of values. ‘Mean’ means arithmetic mean unless geometric mean is explicitly stated.